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16IR18UNBLU - Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 18 |
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Description
The Carmex Thread Turning Internal Insert is a right-hand, universal-thread insert designed to form internal threads in UNC, UNF, UNEF, and UNS forms. Its blue-tinted, laydown triangular geometry offers a versatile solution for a wide range of applications in workshops, job shops, and maintenance environments.
Designed to cover the majority of thread standards with a single tool, it simplifies setup and inventory while delivering reliable results from basic to demanding threading tasks.
- Universal thread compatibility: Works with UNC, UNF, UNEF, and UNS internal threads, reducing the need for multiple inserts and simplifying setup.
- Laydown triangular geometry for stability: The laydown shape provides stable engagement and smooth chip control, helping you achieve consistent thread quality across different materials and applications.
- Right-hand orientation for predictable results: Specifically shaped for right-hand threads, ensuring straightforward indexing and reliable performance in common machining setups.
With a single insert family that covers major UN thread standards, you can streamline inventory, shorten setup times, and rely on consistent internal thread results. This Carmex insert is built for durability and repeatable performance, helping you complete jobs faster and reduce downtime on production runs.
Part Numbers
- Protool Part Number
- 16IR18UNBLU
- Brand
- Carmex
- Category
- Thread Turning
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
